Title:
METHOD FOR TRANSMITTING ULTRASONIC PULSE FROM ULTRASONIC TRANSDUCER TO PATIENT, AND ULTRASONIC WAVE TRANSMITTING SYSTEM
Document Type and Number:
Japanese Patent JP2002034978
Kind Code:
A
Abstract:
To simulate transmission apodization without using a voltage regulator along each transducer element.
In a system for controlling a point intensified degree distribution function of ultrasonic signals transmitted to a patient, only a selected number of transducer elements transmit transmission pulses. Elements without transmitting pulses are selected in accordance with an apodization probability density function. Each transducer element transmits transmission pulses for variable quantity to control sound output of signals transmitted from the element.
Inventors:
MA QINGLIN
LAZENBY JOHN C
YAO LIN XIN
MCDERMOTT BRUCE A
PETERSEN DAVID A
LAZENBY JOHN C
YAO LIN XIN
MCDERMOTT BRUCE A
PETERSEN DAVID A
Application Number:
JP2001194751A
Publication Date:
February 05, 2002
Filing Date:
June 27, 2001
Export Citation:
Assignee:
SIEMENS MEDICAL SYSTEMS INC
International Classes:
A61B8/00; G01S7/52; G10K11/34; (IPC1-7): A61B8/00
Domestic Patent References:
| JPH0730999A | 1995-01-31 | |||
| JPS6468240A | 1989-03-14 | |||
| JPH028410A | 1990-01-11 | |||
| JPH04146736A | 1992-05-20 | |||
| JPH0731613A | 1995-02-03 | |||
| JPH11221217A | 1999-08-17 | |||
| JPH06181925A | 1994-07-05 | |||
| JPH04225187A | 1992-08-14 | |||
| JPS54155683A | 1979-12-07 | |||
| JPH04300530A | 1992-10-23 | |||
| JPH0370550A | 1991-03-26 |
Attorney, Agent or Firm:
Toshio Yano (3 outside)